CN102460829A - 近场通信 - Google Patents
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Abstract
一种装置，包括：天线，其被配置用于以第一频率进行高效的远场通信；感应元件，其包括多个串联连接的线圈状部分，所述线圈状部分包括第一线圈状部分和第二线圈状部分，其中所述感应元件被配置用于以第二频率提供近场通信；以及至少一个电抗元件，其并联连接在所述第一线圈状部分和所述第二线圈状部分之间，其中所述至少一个电抗元件具有在所述第一频率下比在所述第二频率下更低的阻抗。
Description
技术领域
本发明的实施方式涉及近场通信，并且具体而言，涉及在无线电发射器和/或接收器装置处的近场通信。
背景技术
无线电发射器和/或接收器装置使用天线来发射和/或接收以一个或多个频率传播的电磁无线电波(远场通信)。
如果在同一装置中使用感应元件，则可能对天线的操作具有不利影响。
发明内容
根据本发明的各种但并非必须是所有的实施方式，提供了一种装置，其包括：配置用于以第一频率进行高效远场通信的天线；包括多个串联连接的线圈状部分的感应元件，其中该多个串联连接的线圈状部分包括第一线圈状部分和第二线圈状部分，该感应元件配置用于提供以第二频率进行的近场通信；以及在第一线圈状部分和第二线圈状部分之间并联连接的至少一个电抗元件，其中该至少一个电抗元件具有在第一频率下比在第二频率下更低的阻抗。
根据本发明的各种但并非必须是所有的实施方式，提供了一种方法，其包括：提供感应元件，其包括多个串联连接的线圈状部分，该多个串联连接的线圈状部分包括第一线圈状部分和第二线圈状部分；以及提供在感应元件的第一线圈状部分和第二线圈状部分之间并联连接的至少一个电抗元件，从而产生经修改的感应元件，该经修改的感应元件配置用于，当其在配置用于以第一频率进行高效远场无线电通信的装置中使用时，提供以不同于第一频率的第二频率进行的近场通信。
根据本发明的各种但并非必须是所有的实施方式，提供了一种装置，其包括：感应元件，包括多个串联连接的线圈状部分，该多个串联连接的线圈状部分包括第一线圈状部分和第二线圈状部分；以及在感应元件的第一线圈状部分和第二线圈状部分之间并联连接的至少一个电抗元件。
由于具有电抗元件的感应元件并没有不利地影响天线的操作，因而具有电抗元件的感应元件可以被放置为紧邻天线。这节省了在手持便携装置中宝贵的空间。
将具有电抗元件的感应元件放置为紧邻天线而没有不利地影响天线性能的这一能力允许具有电抗元件的感应元件和天线能够以堆叠布置共处一处。装置的金属封盖中的任何窗口只需很小。
附图说明
为了更好地理解本发明的一些实施方式的各种示例，现在将仅通过示例方式对附图进行参考，在附图中：
图1示意性地示出了包括天线和感应元件的装置，该感应元件具有至少一个连接的电抗元件；
图2A以平面视图示出了具有一个连接的电抗元件的感应元件的一个示例；
图2B以侧面视图示出了图2A的感应元件；
图3以平面视图示出了具有多个连接的电抗元件的感应元件的示例；
图4A和图4B在回波损耗S11绘图和史密斯图中示意性地示出了不具有连接的一个或多个电抗元件的感应元件的作用；
图5A和图5B在回波损耗S11绘图和史密斯图中示意性地示出了具有连接的一个或多个电抗元件的感应元件的作用；
图6示意性地示出了感应元件(具有电抗元件)到通信电路的匹配连接；
图7示意性地示出了将滤波器与感应元件(具有电抗元件)结合使用；
图8示意性地示出了如何将感应元件(具有电抗元件)和天线置于无线电装置的壳体内的示例；
图9A、图9B和图9C示意性地示出了感应元件(具有电抗元件)和天线的不同布置。
具体实施方式
附图示意性地示出了装置10，其包括：天线2，其配置用于以第一频率进行高效远场通信；感应元件20，其包括多个串联连接的线圈状部分22，线圈状部分22包括第一线圈状部分和第二线圈状部分，其中感应元件20被配置成提供以第二频率进行的近场通信；以及至少一个电抗元件30，其并联电连接在第一线圈状部分和第二线圈状部分之间，其中至少一个电抗元件30具有在第一频率下比在第二频率下更低的阻抗。
天线2被配置用于以第一频率进行高效的远场通信。该天线被配置成发射和/或接收以第一频率传播的电磁无线电波。
天线2的第一频率位于天线2的、由具有谐振频率的谐振模式创建的工作带宽内。“工作带宽”是天线能够有效工作的频率范围。例如当天线的插入损耗S11大于工作阈值(诸如4dB或6dB)时，发生有效工作。
天线2可以被配置成具有例如在800MHz和2500MHz之间的区域中的工作带宽/谐振。
该频率范围包括蜂窝无线电频率、蓝牙频率和通用定位系统(GPS)频率，并且可以包含此处未列出的其他无线电协议。
例如，天线2可以具有覆盖较低蜂窝频率(824MHz-960MHz)的第一范围中的所有或部分频带的工作带宽。该较低频率范围包括欧洲和美国GSM频带【US-GSM 850(824MHz-894MHz)；EGSM900(880MHz-960MHz)】，欧洲宽带CDMA频带【EU-WCDMA900(880-960MHz)】以及美国宽带CDMA频带(US-WCDMA 850)。
例如，天线2可以具有附加的或备选的工作带宽，该工作带宽覆盖较高蜂窝频率(1710MHz-2180MHz)的第二范围中的所有或部分频带。该较高范围包括如下频带：PCN/DCS1800(1710MHz-1880MHz)；US-WCDMA 1900(1850MHz-1990MHz)；WCDMA21000(Tx：1920MHz-1980MHz Rx：2110-2180MHz)；PCS 1900(1850MHz-1990MHz)；以及美国宽带CDMA频带(US-WCDMA 1700)。
适合于在这些蜂窝频带中的一个或多个中工作的天线是平面倒F天线(PIFA)或可切换PIFA。本领域已知的其他天线类型也可以用于蜂窝频带，例如环形天线、双极、单极等。
备选地，天线2可以具有覆盖GPS频带(1570.42MHz-1580.42MHz)的工作带宽。
备选地，天线2可以具有覆盖蓝牙频带(2400MHz-2483.5MHz)的工作带宽。
在图2A和图2B中示出了感应元件20的示例。图2A是从上方看去的感应元件20的平面视图，而图2B是感应元件20的侧视图。
感应元件20包括多个串联连接的线圈状部分22n。在所示出的示例中，有四个线圈状部分221、222、223、224。各个线圈状部分是电化导体(galvanic conductor)。由于线圈状部分22n是串联连接的，所以存在依次通过各个线圈状部分22n的单电阻(Ohmic)通路。
感应元件20被配置成提供以第二频率进行的近场通信。第二频率例如可以是13.56MHz+/-7kHz(未授权)，该频率是用于近场通信(NFC)标准的频率。
感应元件20可以用于无接触式功率传送，该无接触式功率传送是不具有电化/电阻连接的功率传送。感应元件20的工作距离较短，并且可以取决于由线圈状部分22提供的电化路径的长度和/或由线圈状绕组限定的区域。例如，感应元件的工作距离可以少于10cm或少于4cm。
在图2A或图2B中，感应元件20的线圈状电化导体形成一系列的同心线圈。在其他一些实施方式中，感应元件20可以由可以在不同层中交叠的线圈来形成。线圈的形状可以变化，并且在所示出的示例中它们是矩形回路。线圈的同心性质在电流沿电化导体的电阻路径流动时产生强定向磁场(H)。在线圈内部的区域中存在H场的相长干涉，在线圈外部区域中存在H场的相消干涉。这产生了强定向磁场H，该磁场H在线圈内部最大并沿中心轴线24延伸进入图2A中的纸面平面或从纸面平面延伸出。
感应元件20形成空气芯变压器的一半，另一半由与其通信的设备形成。
在图2A或图2B中示出的感应元件20可以基本位于单个的二维平面26内。形成感应元件20的电化导体围绕中心轴线24卷绕(绕其自身卷曲)。各个线圈状部分22形成具有距中心轴线不同间隔的卷绕回路。
在所示出的示例中，形成卷绕回路的线圈状部分22的形状是矩形。各个线圈状部分包括第一直线段，其通过直角拐角连接到第二直线段。第二直线段通过直角拐角连接到第三直线段。第三直线段通过直角拐角连接到第四直线段。第四直线段通过直角拐角连接到串联的下一线圈状部分22的第一直线段。
虽然该示例涉及绕中心轴线对称排列的线圈，但是可以有因整体形状非对称而导致的并不对称排列的线圈或回路。虽然在图2A或图2B中在二维平面中示出了感应元件20，但是感应元件20还可以成形为三维以适配例如复杂三维体或当今典型的便携式电子设备的底架。在该示例中，如在图2B中示出的剖面可以是基本上弯曲的，或者根据便携式电子设备的形状而具有任何备选形状。虽然在图2A的示例中，线圈状部分22的形状是矩形，但是还可以运用其他一些形状，从而使得线圈状部分22适应典型的便携式电子设备内的其他组件或模块。
如图2A所示，至少一个电抗元件30并联连接在不同的线圈状部分22之间。
在图2A中，电抗元件30连接在直接串联连接的两个线圈状部分之间。
在图3中，电抗元件301连接在直接串联连接的两个线圈状部分之间，并且电抗元件304连接在直接串联连接的两个线圈状部分之间。电抗元件302连接在并未直接串联连接的两个线圈状部分之间。电抗元件302连接在线圈状部分222和线圈状部分224之间。线圈状部分222经由线圈状部分223与线圈状部分224连接。这是从线圈状部分222经由线圈状部分223到线圈状部分224的电阻路径。电抗元件303连接在未直接串联连接的两个线圈状部分之间。电抗元件303连接在线圈状部分221和线圈状部分224之间。线圈状部分221经由线圈状部分222和线圈状部分223的串联组合与线圈状部分224连接。这是从线圈状部分221经由线圈状部分222随后经由线圈状部分223到线圈状部分224的电阻路径。
电抗元件30是频率相关的阻抗，其具有在第一频率下比在第二频率下更低的阻抗。第二频率下的阻抗可以比第一频率下的阻抗大数百倍。第二频率下的阻抗可以具有数百欧姆或更高的值。第一频率下的阻抗可以具有数欧姆或更低的值。第一频率(例如800MHz和2500MHz)高于第二频率(例如13.56MHz)。
电抗元件30可以例如是在第二频率下具有高阻抗(例如高于100欧姆)但是在第一频率下具有低阻抗(例如低于10欧姆)的高通滤波器或带通滤波器。
包括感应元件20和一个或多个电抗元件的布置具有在第一频率下的第一电流路径和在第二频率下的第二电流路径。第一电流路径短于第二电流路径，因而具有不同的谐振模式。串联连接的线圈部分在较高频率(第一频率)下还有效地并联连接，但是在较低频率(第二频率)下未有效地并联连接。
电抗元件30例如可以是电容器。合适的电容器例如可以具有在约20pF和约100pF之间的电容，其可以例如具有33pF的值。
一个或多个电抗元件30修改感应元件20在第一频率下的谐振特性以降低在天线2的工作频率下的天线和感应元件之间的耦合。
虽然在图3中示出了电抗元件30的某种布置，但是应该理解电抗元件30可以以许多不同的方式布置在线圈状部分22之间或者布置为遍布整个感应元件20。
图4A和图4B示出了当存在未附接电抗元件30的感应元件20时天线2的性能。图4A是回波损耗S11的绘图，并且图4B是史密斯图。感应元件30内在第一频率下的谐振模式与天线2耦合，并且产生损害天线2的性能的附加谐振42。
图5A和图5B示出了当附接有感应元件20和电抗元件30天线2的性能。图5A是回波损耗S11的绘图，并且图5B是史密斯图。电抗元件30将感应元件20内的谐振模式移动偏离第一频率。对感应元件20在第一频率下的谐振特性的修改降低了在天线2的工作频率下天线2和感应元件20之间的耦合。
图6示意性地示出了感应元件20(附接有电抗元件30)可以如何连接到通信电路66，该通信电路66向感应元件20提供经调制的电流以供近场通信。电路66和感应元件20经由匹配电路64互连，该匹配电路64将感应元件20的阻抗与电路66的阻抗进行匹配。
感应元件20具有第一端24，其连接在由感应元件20提供的电阻路径的一端，以及第二端26，其连接在由感应元件20提供的电阻路径的另一端。
第一附加电抗元件60串联连接至第一端24。第一附加电抗元件60具有在第一频率下比在第二频率下更高的电阻抗。第一附加电抗元件60可以具有在第一频率下比在第二频率下高出数百倍的阻抗。第一频率下的阻抗例如可以是数百或数千欧姆。
第一附加电抗元件60可以例如是在第二频率下具有低阻抗但是在第一频率下具有高阻抗的带通滤波器或低通滤波器。第一附加电抗元件60在第一频率下将感应元件20与电路66解耦合。第一附加电抗元件60可以例如是电感器。该电感器可以例如具有在60nH和600nH之间的电感。
第二附加电抗元件62串联连接到第二端26。第二附加电抗元件62具有在第一频率下比在第二频率下更高的电阻抗。第二附加电抗元件62可以具有在在第一频率比在第二频率下高出数百倍的阻抗。第一频率下的阻抗可以例如是数百或数千欧姆。
第二附加电抗元件62例如可以是在第一频率下具有低阻抗但是在第二频率下具有高阻抗的带通滤波器或低通滤波器。第二附加电抗元件62在第一频率下将感应元件20与电路66解耦合。第二附加电抗元件62可以例如是电感器。该电感器可以例如具有在60nH和200nH之间的电感。
虽然在图6中将附加的电抗元件60、62示出为匹配电路64之外的单独组件，但是在其他一些实现方式中，附加的电抗元件60、62可以被集成在匹配电路64内。
如图7所示，在一些实施方式中滤波器68可以被放置在第一端24和第二端26之间以使得能够同时操作感应元件20以用于近场通信和天线2以用于无线电通信。
图8示意性地示出了无线电装置10，其被配置为发射和/或接收以天线2的工作频率传播的电磁无线电波。无线电装置10可以例如是手持便携式无线电装置，其尺寸被设计为供手的手掌或夹克口袋内携带。无线电装置10可以例如操作为移动蜂窝电话、卫星定位系统、短程通信设备等。
图8示出了可以如何布置天线2和具有附接的电抗元件30的感应元件20。感应元件20和天线2可以被放置为非常紧邻，其间距少于3mm或1mm。电抗元件30在天线2的工作频率下将感应元件20与天线2进行解耦合，这使得感应元件20与天线2能够非常紧邻而不会不利地影响天线2的性能。
在使用时，感应元件20产生沿中心轴线24基本对准的最大磁场。感应元件20和天线2在堆叠布置中沿轴线的不同位置而共处一处。
在所示出的示例中，天线2基本为平面形，其具有上侧2A和相对的下侧2B。感应元件20被布置在轴线上从天线2的第一上侧2A向上位移，并且接地平面82被布置在轴线上从天线2的第二下侧2B向下位移。
感应元件20并不包括铁芯，而是感应元件20在使用时作为空气芯变压器工作。
包括其附接的电抗元件30的感应元件20和天线(具有或者不具有接地平面82)可以被集成在模块80内。此处使用的“模块”是指不包括某些部件/组件的单元或装置，该部件/组件将由终端制造商或用户添加。
在图8中，包括其附接的电抗元件30的感应元件20和具有接地平面82的天线被容纳于包括外壳70的无线电装置10内。外壳可以例如是塑料或金属或这两者的组合。外壳70包括展示金属外部74和没有金属的非金属部分76的正面72。在所示出的示例中，感应元件20与天线2叠置，并且被布置在正面72和天线2之间。在其他一些实施方式中，天线2可以与感应元件20叠置，并且被布置在正面72和感应元件20之间。在又一些实施方式中，天线2可以与感应元件20部分地叠置，从而使得具有一些叠置区域和一些未叠置区域，这可以用于将天线2布置在正面72和感应元件20之间或者将感应元件20布置在正面72和天线2之间。非金属部分76与天线2和感应元件20这两者基本上对准。除了非金属部分76的位置处之外，外壳70可以具有基本上金属的外部，并且由于天线2和感应元件20是堆叠对准并且紧邻，因此非金属部分76的尺寸很小。
图9A示意性地示出了具有其附接电抗元件30的感应元件20，该电抗元件30紧附至支撑件52。塑料支撑件50将感应元件20与天线2分离约0.8mm。支撑件具有介电常数和在天线2的工作频带下不增加无线电频率损耗的损耗因数。
图9B示意性地示出了具有其附接电抗元件30的感应元件20，该电抗元件30紧附至支撑件52。天线2位于由支撑件52桥接的井54内。井54的侧壁部分和支撑件52形成基本上平面形的上表面56。
图9C示意性地示出了具有其附接电抗元件30的感应元件20，该电抗元件30紧附至支撑件52。支撑件52附接至外壳的封盖部分60的内表面62。天线2附接到外壳的由封盖部分60覆盖的部分70的表面72。当封盖部分60附接到部分70时，具有其附接的电抗元件的感应元件20从覆盖部分的内表面62悬置紧邻天线2。
具有其附接的电抗元件30的感应元件20可以通过如下方式形成：
a)提供包括多个串联连接的线圈状部分的感应元件，该多个串联连接的线圈状部分包括第一线圈状部分和第二线圈状部分；以及
b)提供在感应元件的第一线圈状部分和第二线圈状部分之间并联连接的至少一个电抗元件。
一个或多个电抗元件产生经修改的感应元件20，该感应元件20被配置为，当在配置用于使用天线以第一频率进行有效的远场无线电通信的装置中使用时，以不同于第一频率的第二频率提供近场通信。
感应元件被设计成使得PIFA和感应元件之间的耦合甚至在添加电抗元件之前也因该设计而最小化。
在邻近感应元件的天线中可以布置狭槽或狭缝以减少有损涡流电流。这改进了感应元件的磁场强度H。
虽然已在前面段落中参考各种示例描述了本发明的一些实施方式，但是应该理解在不偏离本发明所宣称的范围的前提下可以做出对所给示例的修改。
除了明确描述的组合之外，可以组合使用前面说明书中描述的特征。
虽然参考某些特征描述了一些功能，但是那些功能可以通过其他一些特征执行，而无论该特征是否被描述。
虽然参考某些实施方式描述了一些特征，但是那些特征可以在其他一些实施方式中存在，而无论该实施方式是否被描述。
虽然在前面的说明书中着力关注于本发明的尤其重要的一些特征，但是应该理解申请人要求对之前提及和/或在附图中示出的可被授予专利权的任何特征或特征组合的保护，无论是否对该特征或特征组合进行了特别强调。
Claims (42)
1.一种装置，包括：
天线，其被配置用于以第一频率进行高效的远场通信；
感应元件，其包括多个串联连接的线圈状部分，所述线圈状部分包括第一线圈状部分和第二线圈状部分，其中所述感应元件被配置用于以第二频率提供近场通信；以及
至少一个电抗元件，其并联连接在所述第一线圈状部分和所述第二线圈状部分之间，其中所述至少一个电抗元件在所述第一频率下具有比在所述第二频率下更低的阻抗。
2.根据权利要求1所述的装置，其中所述第二频率是13.56MHz。
3.根据权利要求1或2所述的装置，其中所述感应元件是线圈状电化导体。
4.根据前面权利要求中任一项所述的装置，其中所述感应元件围绕中心轴线卷绕，并且其中各个所述线圈状部分形成具有距所述中心轴线不同间隔的卷绕回路。
5.根据前面权利要求中任一项所述的装置，其中所述线圈状部分基本上为矩形。
6.根据前面权利要求中任一项所述的装置，其中所述感应元件基本上位于二维平面内。
7.根据前面权利要求中任一项所述的装置，其中所述第一线圈状部分和所述第二线圈状部分是直接串联连接的。
8.根据权利要求1-6中任一项所述的装置，其中所述第一线圈状部分和所述第二线圈状部分是经由一个或多个附加的线圈状部分而串联连接的。
9.根据前面权利要求中任一项所述的装置，其中所述天线被配置用作蜂窝天线或蓝牙天线或GPS天线。
10.根据前面权利要求中任一项所述的装置，其中所述天线被配置成具有在800MHz和2500MHz之间的工作谐振。
11.根据前面权利要求中任一项所述的装置，其中所述天线是平面倒F天线或可切换天线。
12.根据前面权利要求中任一项所述的装置，其中所述第一频率大于所述第二频率。
13.根据前面权利要求中任一项所述的装置，其中所述至少一个电抗元件主要是电容性的。
14.根据前面权利要求中任一项所述的装置，其包括并联电连接于所述感应元件的相应线圈状部分之间的多个电抗元件，并且各个电抗元件在所述第一频率下具有比在所述第二频率下更低的阻抗。
15.根据权利要求14所述的装置，其中并联电连接于所述感应元件的相应线圈状部分之间的所述一个或多个电抗元件修改所述感应元件的谐振特性，以减少在所述天线的工作频率下的所述天线和所述感应元件之间的耦合。
16.根据前面权利要求中任一项所述的装置，其中所述感应元件具有第一端和第二端，并且第一附加电抗元件串联连接至所述第一端，其中所述第一附加电抗元件在所述第一频率下具有比在所述第二频率下更高的电阻抗。
17.根据权利要求16所述的装置，其中所述第二附加电抗元件串联连接至所述输出端口，其中所述第二附加电抗元件在所述第一频率下具有比在所述第二频率下更高的电阻抗。
18.根据权利要求16或17所述的装置，其中至少所述第一附加电抗元件包括在用于所述感应元件的匹配网络内，所述匹配网络被配置成使得所述感应元件能够以13.56MHz提供更高效的近场通信。
19.根据前面权利要求中任一项所述的装置，其中所述感应元件具有第一端和第二端，以及布置于所述第一端和所述第二端之间的滤波器，所述滤波器使得能够同时操作所述感应元件以用于近场通信和天线以用于无线电通信。
20.根据前面权利要求中任一项所述的装置，其中所述感应元件紧邻所述天线，其间隔少于3mm。
21.根据前面权利要求中任一项所述的装置，其中在使用时，所述感应元件生成沿轴线基本对准的最大磁场，并且其中所述感应元件和所述天线定位在沿轴线的不同位置处。
22.根据前面权利要求中任一项所述的装置，还包括用于所述天线的接地平面，其中所述感应元件被布置在所述轴线上从所述天线的第一侧位移，并且所述接地平面被布置在所述轴线上从所述天线的第二侧位移，其中所述第二侧与所述第一侧相对。
23.根据前面权利要求中任一项所述的装置，其中所述感应元件不包括铁芯，并且所述感应元件在使用时作为空气芯变压器工作。
24.根据前面权利要求中任一项所述的装置，其被配置为模块。
25.根据前面权利要求1-23中任一项所述的装置，其被配置为通信设备，所述通信设备包括金属外壳，其中所述外壳包括展示金属外部和没有金属的非金属部分的正面，并且其中所述非金属部分与所述天线和所述感应元件这两者基本上对准。
26.根据权利要求25所述的装置，除了所述非金属部分的位置中之外，所述外壳具有基本上金属的外部。
27.根据权利要求25或26所述的装置，其中所述感应元件与所述天线叠置，并且被布置在所述正面和所述天线之间。
28.一种方法，包括：
提供感应元件，其包括多个串联连接的线圈状部分，所述线圈状部分包括第一线圈状部分和第二线圈状部分；以及
提供至少一个电抗元件，其并联连接在所述感应元件的所述第一线圈状部分和所述第二线圈状部分之间，以产生经修改的感应元件，所述经修改的感应元件被配置用于，当在配置用于以第一频率进行远场无线电通信装置中使用时，提供以不同于所述第一频率的第二频率进行的近场通信。
29.一种装置，包括：
感应元件，其包括多个串联连接的线圈状部分，所述线圈状部分包括第一线圈状部分和第二线圈状部分；以及
至少一个电抗元件，其并联连接在所述第一线圈状部分和所述第二线圈状部分之间。
30.根据权利要求29所述的装置，其中所述感应元件被配置成以第二频率提供近场通信。
31.根据权利要求29所述的装置，其中所述至少一个电抗元件在所述第二频率下具有高阻抗。
32.根据权利要求30或31所述的装置，其中所述第二频率是13.56MHz。
33.根据权利要求29至32中任一项所述的装置，其中所述感应元件是线圈状电化导体。
34.根据权利要求29至33中任一项所述的装置，其中所述感应元件围绕中心轴线卷绕，并且其中各个所述线圈状部分形成具有距所述中心轴线不同间隔的卷绕回路。
35.根据权利要求29至34中任一项所述的装置，其中所述线圈状部分基本上为矩形。
36.根据权利要求29至35中任一项所述的装置，其中所述感应元件基本上位于二维平面内。
37.根据权利要求29至36中任一项所述的装置，其中所述第一线圈状部分和所述第二线圈状部分是直接串联连接的。
38.根据权利要求29至37中任一项所述的装置，其中所述第一线圈状部分和所述第二线圈状部分是经由一个或多个附加的线圈状部分而串联连接的。
39.根据权利要求29至38中任一项所述的装置，其中所述至少一个电抗元件主要是电容性的。
40.根据权利要求29至39中任一项所述的装置，对于邻近被配置成以第一频率工作的天线使用而言，其中所述至少一个电抗元件在所述第一频率下具有比在所述第二频率下更低的阻抗。
41.根据权利要求40所述的装置，其中所述多个电抗元件并联电连接于所述感应元件的相应线圈状部分之间，并且各个电抗元件在所述第一频率下具有比在所述第二频率下更低的阻抗。
42.根据权利要求40或41所述的装置，并联电连接于所述感应元件的相应线圈状部分之间的所述一个或多个电抗元件修改所述感应元件的谐振特性，以减少在所述天线的工作频率下的所述天线和所述感应元件之间的耦合。
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| CN107431886B (zh) * | 2015-04-03 | 2018-07-03 | 高通股份有限公司 | 用于基于位置进行调谐的系统和方法 |
| CN106329061A (zh) * | 2016-08-29 | 2017-01-11 | 青岛海信移动通信技术股份有限公司 | 天线装置及具有该天线装置的移动终端 |
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Also Published As
| Publication number | Publication date |
|---|---|
| ES2673328T3 (es) | 2018-06-21 |
| US8212735B2 (en) | 2012-07-03 |
| EP2438649B1 (en) | 2018-04-11 |
| WO2010139851A1 (en) | 2010-12-09 |
| RU2011153111A (ru) | 2013-07-20 |
| US20100309088A1 (en) | 2010-12-09 |
| CN102460829B (zh) | 2016-01-20 |
| CA2764118C (en) | 2015-01-20 |
| EP2438649A4 (en) | 2015-01-28 |
| CA2764118A1 (en) | 2010-12-09 |
| EP2438649A1 (en) | 2012-04-11 |
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